What are overhead and gantry cranes?

Overhead cranes are large industrial cranes that are typically suspended from the ceiling or overhead structure of a building. They are used to lift and move heavy loads horizontally within a specific area. Overhead cranes typically consist of a bridge, end trucks, hoist, and trolley.

Gantry cranes, on the other hand, are similar to overhead cranes but are supported by a metal or steel framework known as a gantry, which allows them to move along rails or tracks on the ground. Gantry cranes are often used in outdoor settings, such as shipyards or construction sites, where there is no overhead structure to support an overhead crane. Gantry cranes can have various configurations, such as single leg, double leg, or A-frame, depending on the specific lifting requirements.